Truck bumper



FIG. 1 is a perspective view of a truck bumper showing my new design;

FIG. 2 is a front view of the bumper thereof;

FIG. 3 is a rear view of the bumper thereof;

FIG. 4 is a left side view of the bumper thereof;

FIG. 5 is a right side view of the bumper thereof;

FIG. 6 is a top view of the bumper thereof; and,

FIG. 7 is a bottom view of the bumper thereof.

CLAIM The ornamental design for a truck bumper, as shown and described.